Home / 20,142.17-30,137.27-18,095.91

Finding the Fourth Proportional to 20,142.17, 30,137.27 and 18,095.91

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Solution

The fourth proportional to 20,142.17, 30,137.27 and 18,095.91 is: 27,075.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142.17 : 30,137.27 = 18,095.91 : x
  2. Step 2: Convert to fraction form
    20,142.17/30,137.27 = 18,095.91/x
  3. Step 3: Cross multiply
    20,142.17x = 30,137.27 × 18,095.91
  4. Step 4: Simplify right side
    20,142.17x = 545,361,122.07
  5. Step 5: Solve for x
    x = 545,361,122.07/20,142.17
  6. Step 6: Final answer
    x = 27,075.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.